The u drive company charges $20 per day plus $.22 per mile driven. for a one day trip louis paid a rental fee of $66.20. how many miles did he go

Well let's deduct the $20 he HAD to pay for one day.

$66.20 - $20 = $46.20

So from those $46.20, we divide by 22 cents to figure out exactly how many miles Louis traveled.

$46.20/$.22 = 210 miles

Louis had traveled 210 miles.